Rosyna Keller
@mjtsai No, it's to prevent bugs in the apps from being exploited and doing harm to other parts of the system.
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@rosyna@drewthaler For example, -[NSWorkspace openFile:]. The rules have changed several times w/ OS versions and are not documented.
Michael Tsai
Drew Thaler
@mjtsai @drewthaler What rules for openFile:? You just need to call startAccessingSecurityScopedResource: first to punch a hole in sandbox
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@rosyna@drewthaler No, there are cases where the document can't be opened if the app for it isn’t sandboxed, even if you punch a hole. -
@mjtsai@drewthaler Do you have an example of that? Because LaunchServices handles openFile. -
@rosyna@drewthaler Not handy. DTS eventually explained it to me; they were initially unaware, too. I fear more undocumented cases like this -
@mjtsai@drewthaler Because restrictions on openFile: are mostly handled by Gatekeeper, not the sandbox. - View other replies
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@rosyna@drewthaler Similar issue in that some AppleScripts don’t work from sandbox, even when run using NSUserAppleScriptTask. -
@mjtsai@drewthaler In both cases, you need to use security-scoped bookmarks and startAccessingSecurityScopedResource - View other replies
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@rosyna@drewthaler Perhaps security-scoped bookmarks are supposed to work in this case, but in practice they didn’t.
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